+ /**
+ * Update the origin_url field when a redirection occurs
+ * This field is set if it is empty and new url does not match ignore list.
+ *
+ * @param Entry $entry
+ * @param string $url
+ */
+ private function updateOriginUrl(Entry $entry, $url)
+ {
+ if (!empty($url) && $entry->getUrl() !== $url) {
+ $parsed_entry_url = parse_url($entry->getUrl());
+ $parsed_content_url = parse_url($url);
+
+ $diff_ec = array_diff_assoc($parsed_entry_url, $parsed_content_url);
+ $diff_ce = array_diff_assoc($parsed_content_url, $parsed_entry_url);
+
+ $diff = array_merge($diff_ec, $diff_ce);
+ $diff_keys = array_keys($diff);
+ sort($diff_keys);
+
+ if ($this->ignoreUrl($entry->getUrl())) {
+ $entry->setUrl($url);
+ } else {
+ switch ($diff_keys) {
+ case ['path']:
+ if (($parsed_entry_url['path'] . '/' === $parsed_content_url['path']) // diff is trailing slash, we only replace the url of the entry
+ || ($url === urldecode($entry->getUrl()))) { // we update entry url if new url is a decoded version of it, see EntryRepository#findByUrlAndUserId
+ $entry->setUrl($url);
+ }
+ break;
+ case ['scheme']:
+ $entry->setUrl($url);
+ break;
+ case ['fragment']:
+ case ['query']:
+ case ['fragment', 'query']:
+ // noop
+ break;
+ default:
+ if (empty($entry->getOriginUrl())) {
+ $entry->setOriginUrl($entry->getUrl());
+ }
+ $entry->setUrl($url);
+ break;
+ }
+ }
+ }
+ }
+
+ /**
+ * Check entry url against an ignore list to replace with content url.
+ *
+ * XXX: move the ignore list in the database to let users handle it
+ *
+ * @param string $url url to test
+ *
+ * @return bool true if url matches ignore list otherwise false
+ */
+ private function ignoreUrl($url)
+ {
+ $ignored_hosts = ['feedproxy.google.com', 'feeds.reuters.com'];
+ $ignored_patterns = ['https?://www\.lemonde\.fr/tiny.*'];
+
+ $parsed_url = parse_url($url);
+
+ $filtered = array_filter($ignored_hosts, function ($var) use ($parsed_url) {
+ return $var === $parsed_url['host'];
+ });
+
+ if ([] !== $filtered) {
+ return true;
+ }
+
+ $filtered = array_filter($ignored_patterns, function ($var) use ($url) {
+ return preg_match("`$var`i", $url);
+ });
+
+ if ([] !== $filtered) {
+ return true;
+ }
+
+ return false;
+ }
+